<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div>
        <img src="../assets/shop.png" alt="" />
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!-- 页面主体区域 -->
    <el-container>
      <!-- 侧边栏区域 -->
      <el-aside :width="isCollapse ? '65px' : '200px'">
          <div class="toggle-button" @click="toggleCollapse" >|||</div>
          <!-- 侧边栏菜单区域 -->
        <el-menu
          background-color="#333744"
          text-color="#fff"
          active-text-color="#409EFF"
          unique-opened
          :collapse="isCollapse"
          :collapse-transition="false"
          router
          :default-active="activePath"
        >

          <!-- 导航栏第一栏 -->
          <el-submenu :index="item.id + ' ' " v-for="item in menuList" :key="item.id">
            <!-- 一级菜单模板 -->
            <template slot="title">
              <i :class="iconsObj[item.id]"></i>
              <span>{{item.authName}}</span>
            </template>
            <!-- 二级菜单模板 -->
            <el-menu-item :index="'/'+subItem.path "  v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/'+subItem.path)">
              <i class="el-icon-menu"></i>
              <span>{{subItem.authName}}</span>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 右侧内容主体 -->
      <el-main>
          <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data() {
    return {
        menuList:[],
        iconsObj:{
        '125':'iconfont iconuser',
        '103':'iconfont icontijikongjian',
        '101':'iconfont iconshangpin',
        '102':'iconfont icondanju',
        '145':'iconfont iconbaobiao'
      },
        isCollapse:false,
        activePath:''
    };
  },
  created() {
    this.getMenusList();
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout() {
      window.sessionStorage.clear();
      this.$router.push("/login");
    },
    async getMenusList() {
      const { data } = await this.$http.get("menus");
      if(data.meta.status !== 200) return this.$message.error(data.meta.msg)
      this.menuList = data.data
    //   console.log(this.menuList);
    },
    toggleCollapse(){
        this.isCollapse = !this.isCollapse
    },
    saveNavState(activePath){
        window.sessionStorage.setItem('activePath',activePath)
        this.activePath = activePath
    }
  },
};
</script>

<style lang="less" scoped>
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0px;
  align-items: center;
  color: #ffffff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    img {
      width: 40px;
      height: 40px;
    }
    span {
      margin-left: 15px;
    }
  }
}
.el-aside {
  background-color: #333744;
  .el-menu{
    border-right: none;
  }
}
.el-main {
  background-color: #eaedf1;
}
.iconfont{
    margin-right: 10px;
}
.toggle-button{
  background-color: #4A5064;
  font-size: 10px;
  line-height: 24px;
  color:#fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>